Ecology of Leuctra geniculata (Plecoptera: Leuctridae), an atlantomediterranean species on the north-eastern border of its area

Biologia ◽  
2008 ◽  
Vol 63 (4) ◽  
Author(s):  
Petr Pařil ◽  
Jindřiška Bojková ◽  
Jan Špaček ◽  
Jan Helešic

AbstractThe first records of Leuctra geniculata Stephens, 1836 in the north-eastern border of its area (the Czech Republic) are presented and an overview of references, synonyms and distribution of the species is given. The ecological preferences of the species, supported by chemical and hydromorphological parameters, are defined. Probable dissemination paths into the Czech Republic and the supposed life cycle of the species are discussed. Photographs of morphological characters, SEM photos of eggs, associated macroinvertebrate assemblages (EPT taxa) and maps of distribution are included.

2018 ◽  
Vol 8 ◽  
pp. 7-21
Author(s):  
Václav Blažek ◽  

The present study provides an etymological analysis of toponyms collected by Ptolemy from Northeast Europe, as known to him in the mid-second century CE. The territory studied roughly corresponds to contemporary Poland and part of the Czech Republic. The northernmost border of probable Celtic toponyms in the area of contemporary Poland may be determined between the 54th and 53rd latitudes (c. 53°30′).


2014 ◽  
Vol 63 (2) ◽  
Author(s):  
Aleš Dolný ◽  
Martin Waldhauser ◽  
Lubomír Kvita ◽  
Lydie Kocourková

Abstract Leucorrhinia caudalis is listed on the European Red List as near threatened. The species had been thought to be extinct in the Czech Republic for the last fifty years, until an accidental discovery of adult males in 2012. In 2014, larvae of Leucorrhinia caudalis were recorded from water reservoirs in the Česká Lípa region, northern Bohemia, for the first time. Thus, it is the first breeding site of L. caudalis in the Czech Republic. A male Leucorrhinia caudalis was also repeatedly recorded in Havířov-Dolní Suchá in the north-eastern Czech Republic.


Biologia ◽  
2009 ◽  
Vol 64 (5) ◽  
Author(s):  
Magdaléna Roháčová ◽  
Pavel Drozd

AbstractDuring the vegetation periods of 2001–2003 Heteroptera associated with the invasive alien tall goldenrods Solidago canadensis and S. gigantea were studied in seven model habitats in the north-eastern part of the Czech Republic. Heteropterans associated with adjacent growths were also studied in 2002–2003. A set of 3,042 specimens of 127 samples was analyzed with the aim of estimating average species richness, abundance and trophic structure of the heteropteran assemblages of the studied plant stand. On alien Solidago, 68 heteropteran species were recorded and 71 species were collected in the stands adjacent to the tall goldenrods with 48 shared species. Despite the nearly indentical species richness and similar abundances in Solidago and adjacent stands, there are differences in the trophic structure. The majority of the shared species and species found on Solidago canadensis only are polyphagous contrary to the majority of stenophagous species found on Solidago free stands only. Only a small proportion of heteropteran species that were recorded on alien Solidago stands are specialized to Asteraceae and their abundance was mostly low. Only the lygaeid Nysius senecionis, an Asteraceae specialist, occured in masses on S. canadensis in sunny and warm habitats. Similarly, predatory Orius minutus and O. niger reached high abundance values in Solidago stands compared to adjacent stands.


2017 ◽  
Vol 66 (1) ◽  
pp. 7-34
Author(s):  
Jan Ježek ◽  
Markéta Omelková ◽  
Josef Hájek

Abstract The horse fly fauna of the NE parts of the Hercynicum (36 species of 8 genera, including one ssp. and one recognized form) is relatively diverse, including 65.5 % of the Tabanid species recorded from the Czech Republic. All literature records are referred to, and 136 new localities added. The most interesting finds during our faunistic survey were the nationally scarce Silvius alpinus (Scopoli, 1763), Hybomitra arpadi (Szilády, 1923), H. kaurii Chvála & Lyneborg, 1970 and H. nitidifrons confiformis Chvála & Moucha, 1971; in spite of literature records H. lurida (Fallén, 1817) was not re-found. Atylotus plebejus (Fallén, 1817) and Chrysops rufipes Meigen, 1830 are classified as endangered species in the Czech Republic, and Glaucops hirsutus (Villers, 1789) as vulnerable.


Author(s):  
Phi Hung Cuong ◽  
Vu Van Anh

Income is an important indicator for assessing the level of economy development as well as identifying and assessing living standards. The population in Northeast border is poor, facilities are outdated, people’s life is difficult, but it hold great potentials for economic development. However, the region’s biggest challenge today is low living standards and high poverty rate. Differences in income and living standards across regions and strata tend to increase the gap. The sustainability of the trend of income increase and improvement of living standards of the population is not stable. As a result, the development of mountainous areas is dependent on poverty reduction solutions for ethnic minorities through the increase of incomes and improvement of market connectivity for ethnic minorities in mountainous areas.


Author(s):  
Renata Kučerová

The paper deals with the analysis of changes in the development of basic characteristics of the dairy industry in the Czech Republic, which cohere with the integration of the Czech Republic into the European Union. The attention is paid on size of the market, growth rate, life cycle, development of prices and development of foreign trade. The total domestic consumption reached 2111.1 million litres in 2004. The industry is in the maturity. The excess of supply exists in the industry; the growth rate is low, under 5% per year. The integration of the Czech Republic into the EU didn’t bring about changes in the development of basic characteristics – size of the market, growth rate, and life cycle. The volume of production changed. The total volume of purchase of raw milk for production went down by 1.4% to the value in 2000. And all prices in the product vertical – milk and milk products (prices of agricultural producers, production prices and consumer’s prices) rose.The paper is a part of solution of the research plan of the FBE MUAF in Brno, No. MSM 6215648904.


Sign in / Sign up

Export Citation Format

Share Document